Tank-heater.



R. LORD.

TANK HEATER.

APPLICATION FILED FEB. 12, 19M}.

PatentedSept. 11, 1917.

UNTTEU @TATlEfi PATENT @FFTCE.

RICHARD LORD, OF CEDAR RAPIDS, IONA.

TANK-HEATER.

Application filed February 12, 1916.

that type of tank heaters which comprise a stove capable of being submerged in the tank for burning such fuels as wood and coal.

The invention is illustrated in the accompanying drawings as follows Figure 1 shows a vertical section just inside of one of the side walls with the heater arranged for coal.

Fig. 2 a similar View with the heater arranged for wood.

The heater body is formed in'one piece having the bottom 1 ends 2 and 3 and sides of the upper projection 5. A pipe 12 is arranged in the upward extension 11.

The formation of a combustion chamberv to the rear of the the chamber is desirable in that the gases liberated from the coal are here consumed. By making one wall of the chimney the upper wall of the fire chamber a constant draft is assured and at the same time in a one piece body such construc tion may be more readily formed. To this end also it is desirable to have the upright portion 11 have one wall of the chimney in-' tegral with the upright or projection 5. By putting the chimney 12 inside of the upright 11 any condensation from the chimney is carried into the upright 11 and this prevents its dripping into the tank and thus tainting the material being heated. The draft fine 18 is formed along the wall of Specification. of Letters Patent.

Patented Sept. 11, 1917.

Serial No. 77,875.

the fire chamber and projection, one wall of this draft flue being the wall 2 of the fire chamber. It has an opening 19 into the fire chamber near the bottom.

A draft plate 1 1 is provided and is of such size that in burning coal it will rest on a ledge 7* on the front of the fire box. It may be swung to the position shown in dotted lines in Fig. 1 for filling the fire box or to the position shown in solid lines in Fig. 1 for removing the ash pan 13 which occupies a position under the fire box.

I prefer to provide the projections 15 on the wall 2 and the projection 16 along the bottom of the upwardly extending projection and to have the plate 1 1: of such size that it will rest on the projections as shown in Fig. 2. If desired, the cover 6 and the plate 1 1 may be connected with a chain 17 so that the opening of the cover will also open the plate a. This forms an insulating chamber when wood is being burned, thus confining the heat to that portion of the fire box with which the liquid comes in contact and also making a tighter closure so as to control the fire. It also keeps the cover cool enough so that it may be readily handled in introducing wood.

The plate 141 when used as shown in Fig. l insulates the fire and makes an air space insulating the major portion of the projection 5 thus conserving the heat. Inasmuch as all of the heater is submerged all the heat that may be given off is given off to the liquid.

I have shown in the figures the heater as arranged in a tank A. The heater preferably has the legs 20 which lift the bottom slightly off the tank floor. Space, therefore, is afforded for liquid and to the extent that the base of the heater gives oif heat this adds to the eificiency of the heater and at the same time raising the heater from the fioor of the tank adds to the safety in the use of the heater. This is particularly effective where wood is used directly on the floor of the heater.

What I claim as new is z j 1. In a tank heater, the combination of a one-piece body having a fire chamber; an upwardly extending entrance projection; and a chimney extending along the top of the fire chamber and having its lower wall formed with the upper wall of the fire chamber.

2. In a tank heater, the combination of a body having a fire chamber; an upwardly fire box and extend into the projection, said extending entrance projection; ribs arplate being of a size to fill the opening ranged in the projection; a fire box; and a above the ribs when placed uponsaid ribs; plate adapted to rest on the fire box and of and a chimney extending along the top of 5 a size to fill the opening above the ribs. the fire box and having its lower Wall 15 3. In a tank heater, the combination of formed with the upper wall of the fire box.

a body having a fire chamber; an upwardly In testimony whereof I have hereunto set extending entrance projection; supporting my hand. ribs arranged in the projection; a remov- 10 able fire box; a plate adapted to rest on the RICHARD LORD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

